[horde] Undefined class error...

[Rodrigo Gesswein]

Hello:

   I'm configuring my new box with latest horde's applications.
All applications runs fine except forward and vacation with qmail module.
I'm getting the following error:

fatal error: Undefined class name 'horde_vfs' in
   /XXX/horde/forwards/lib/Driver/qmail.php on line 194

   Any ideas ??

   Thank you in advance..

Rodrigo!